EP2274503A2

EP2274503A2 - Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines

Info

Publication number: EP2274503A2
Application number: EP09729043A
Authority: EP
Inventors: Zivoslav Milovanovic
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-01
Filing date: 2009-01-29
Publication date: 2011-01-19
Anticipated expiration: 2029-01-29
Also published as: CN102066693A; CA2757899A1; EA201001561A1; WO2009123489A3; EP2274503B1; RS20080133A; AU2009232511A1; RS51355B; AU2009232511B2; EA022650B1; JP5583658B2; DK2274503T3; JP2011517481A; WO2009123489A2; CN102066693B; US20110027118A1

Abstract

Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic pneumatic machines, according to the invention, is used in several embodiments so as to enable its use with all hydraulic pneumatic machines and engines, by fitting constructional assemblies with gears and rotary pistons. Generally, depending on the type of construction, it consists of a piston housing (11) or piston housing (11a) with inlet-outlet connections (20), a gear housing (9), a separating wall (7) or separating wall (7a), front cover (12) and a rear cover (1) connected to each other by bolts screwed in the body of the rear cover (1) or in the body of the piston housings (11 or 11a) wherein set are working-auxiliary rotary pistons that consist of a body (6) of a cylindrical circular shape with one or more working protrusions (A, B, C, D, E or F) and one or more auxiliary recesses (G or H) arranged at the angles, depending on the type of device, that are over shafts (4,5) firmly connected with gears (10) or gears (10a) set in the gear housing (9) where the piston housing (11 or 11a) and the gear housing (9) are separated by separating wall (7 or 7a) with the holes for the shafts (4,5) embedded in the front cover (12) and the separating wall (7) or only in the separating wall (7) or in the covers (12,1).

Description

DEVICE WITH ROTARY PISTONS THAT CAN BE USED AS A COMPRESSOR, A PUMP, A VACUUM PUMP, A TURBINE, A MOTOR AND AS OTHER DRIVING AND DRIVEN

HYDRAULIC-PNEUMATIC MACHINES

O

Technical Field of the Invention

Invention refers to the devices with rotary piston (or pistons) that can be used wherever there is a need to make vacuum, for compression of compressible fluids, for pumping fluids, to create pressure (high and extremely high pressures) e.g.: vacuum pumps, compressors, pumps, then as driving or driven hydraulic pneumatic machines, as devices having a characteristic to convert energy of some fluid into a mechanical power and vice versa such as turbines, motors, internal combustion engines, etc.

Generally speaking invention belongs to the following fields: engines, turbines, drives, pumps, and more precisely: machines or engines, turbines, motors, pumps, with rotary piston, according to the International Patent Classification (IPC)(2007.01) the subject of invention belongs to i.e. is classed and assigned by classification symbols and some of these symbols are: F01C 1/00, F02B 55/00, F03C 2/00, F04C 2/00, F04C 11/00, F04C 18/00, F04C 23/00.

Technical Problem

Technical probem solved by herewith explained invention consists in the following: how to solve the construction of a device with rotary piston (pistons) in several embodiments so as to enable its use wherever needed: to make vacuum, for compression of compressible fluids, for pumping fluids, to create pressure - high and extremely high: vacuum apparatuses, compressors, pumps, then for driving and driven hydraulic pneumatic machines; motors that have a characteristic to convert the energy of some fluid into mechanical power and vice versa (turbines, motors, ...).

Application of structural assemblies with to each other engaged gears and rotary pistons of different profiles gives as a result a uniform economically satisfactory construction with a high rate of utilization and a long working life, by means of which are significantly reduced; friction, noise, and a maximal torque and resistance to very high working pressures are achieved. State-of-Art of Invention

Generally known are different structures of driving and driven machines where the main disadvantage is an expensive and complex manufacturing, and heaviness. With the majority of existing constructions the main problem is the expensive manufacture, the need for regular lubrication due to a high friction coefficient thus leading to relatively complex systems for lybrication, and have a low-rate exploitation of utilization of energy of fluids, e.g. compressors (standard piston compressors) manufacturing of which is very complex, relatively expensive and very noisy, then; pumps with many (2,..., 10, ...and more) working circuits are used to achieve high pressure making them too heavy, expensive, it is similar with high-pressure pumps of 100....200 Bars expensive and complex; steam turbines the activation of which requires the use of special motors; vacuum apparatuses with high rotation of working circuits and low rate of the achieved vacuum; internal combustion engines - very complex.

Searching patent documentation and technical papers in this field has revealed no similar solution of the set out technical problem.

Subject Matter of Invention

Rotary pistons in the housing, by its top and bottom flat surfaces, being in the contact line with the surfaces of separating wall i.e. cover, that close the piston housing and the pistons themselves (and can have a high clearance when used for fluids with impurities, ingredients); rotary pistons are over the shafts firmly connected to gears, set in the other housing (with a certain quantity of oil, being enough for lubrication) where each to other these are engaged; the driving gear with one or with several driven gears and the purpose of these is power transmission and synchronization of revolvment of rotary pistons; while revolving the rotary pistons slide by its tops (at the very line of touch) along the internal side of the housing of the pistons (and where clearances, when using fluids with impurities, these can have even higher clearances when used for fluids with impurities) creating therewith the underpressure (a certain vacuum rate) and in the front, carry out the thrust or are compressed (when used as a turbine or a motor, etc.); in the housing with pistons, some oil can be present there to improve sealing ( and there can be even a constant flow of the appropriate quantity of cooled oil intended, amongst other, when needed to cool device) and to improve the efficacy of the device when used in the function of the vacuum pump or a compressor. - Rotary piston consists of a cylindrically shaped body with protrusions on it (in it) of cylindrical-semicylindrical or other shapes and recessions of cylindrical - semicylindrical or other shapes.

- Protrusions along the length of cylindrical - semicylindrical or other shape on the body of the rotary piston, are in parallel to the axis of the body of rotary piston, for facilitating recognition of each shape, each one is distinctly marked by one of the following alphabets and that; ,,A" ,,B" _C" ,,D" ,,E" ,,F". - ,,A" is a protrusion of a cylindrical - semicylindrical shape.

- ,,B" is a protrusion shaped as an indented (along the length) cylinder - semicylinder per both sides once.

- ,,C" is a protrusion shaped as an indented (along the length) cylinder - semicylinder once per both sides.

- ,,D" is a protrusion shaped as an indented (along the length) cylinder-semicylinder twice per both sides.

- ,,E" is a protrusion shaped as an indented (along the length) cylinder-semicylinder four times per both sides.

- _F" is a protrusion shaped as a truncated cylinder - semicylinder.

Longitudinal recess/recesses of cylindrical - semicylindrical or other shape on the body of the rotary piston is/are in parallel with the axis of the body of the rotary piston and to make description clearer, each shape is marked with one of the following alphabets and that ; ,,G" ,,H".

- ,,G" is a recess of a cylindrical - semicylindrical shape.

- ,,H" is a recess shaped as a truncated cylinder-semicylinder, adjusted to the shape of the working piston ,,F"

A protrusion or a recess as well as several protrusions and recesses (i.e. combination of protrusions or recesses) of any shapes (A₁B₁C, D, E, F₁G₁H) on the body of the rotary piston, are grouped to make an intelligible description, as the following; - Double-sided working auxiliary rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the center or with an integrated shaft, which has on itself two protrusions and two recesses arranged in alteration at the angles of 90 DEG.

- Double-sided working rotary piston - is a body of a cylindrical semicylindrical shape with a hole for shaft in the centre or with an integrated shaft, whereon two protrusions are arranged at the angle of 180 DEG.

- Double-sided auxiliary rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or with an integrated shaft, wherein are two recesses arranged at the angle of 180 DEG.

- Single-sided working rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or with an integrated shaft, whereon is one protrusion.

- Single-sided auxiliary rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or an integrated shaft, wherein is one recess.

- Three-sided working rotary piston - is a body of a cylindrical - semicylindrical shape whereon are three protrusions arranged at the angles of 120 DEG.

- Three-sided auxiliary rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or an integrated shaft, wherein are three recesses arranged at the angles of 120 DEG.

- Four-sided working rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the centre, or an integrated shaft, whereon are four protrusions arranged at the angles of 90 DEG.

- Four-sided auxiliary rotary piston - is a body of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or an integrated shaft, wherein are four recesses arranged at the angles of 90 DEG.

Cylindrical - semicylindrical body of the rotary piston integrated as one part with the shaft or with a hole in the centre matching to the diameter of the shaft, can on itself have any of shaped protrusions A₁B₁C₁D₁E or F₁ and shaped recesses of G or H shape, one by one or combined with several protrusions and recesses as represented and explained in figures 138 to 141 , then figures 143 to 174 and in the devices from Fig. 1 to 137. Inside the housing of the pistons on the separating wall and the cover i.e. inside the elements that close the pistons from both sides, there are recesses - channels. And that, around the gaskets themselves (a hole for the shaft or a bearing), with a duct toward the inlet wherethrough fluid enters into the device). Channels i.e. grooves that can be of different dimensions, shapes, diameters and profiles, have to comply to the said device i.e. to the dimensions of the body of the piston accomodated in the given device. And that only so that it completely fulfills its purpose and therewith stability and efficiency of the said device are not reduced. This is done to unload; gaskets, holes for the shafts and the bearings (that are in the separating walls and covers) from the pressure of fluid in the device and it has a significant importance particularly with high and extremely high pressures.

Devices with rotary pistons are dimenzioned even so that there is a certain clearance between the pistons and internal surface of the piston chamber wherethrough the piston moves and also between the bodies of the rotary pistons itself. In such cases, efficiency of the device is reduced, to some extent, but the advantage of this solution is in that it enables the use of device with fluids which, therein, have only impurities (such as the sand is or some other impurity in the water or any other fluid with any other sort of impurity).

Invention can be used as a brake with a sumultaneous closing (opening) of the drain and supply valve and therewith increases/decreases flow of fluids (and the most suitable are liquid fluids), and therewith the speed of rotating the shafts decreases (increases), or it is completely stopped at the moment of a complete closure of both valves. Herewith avoided is frictional braking with some braking systems. Herewith, with some braking systems, frictional braking is avoided.

Invention - device with rotary pistons can be used in internal combustion engines, primarily gas IC engines, whereby valves would be opened, at a certain position of pistons, at the input (connecting) sides of the piston housings and therewith mixture of air and fuel would be brought into a certain space of the piston chamber under a certain and for that function sufficient pressure and then immediately upon closing the valve, the spark plug would spark the mixture or in any other therefore appropriate, all this repeats during each revolving (cycle). Determination of the moment of the opening and closing the valve and the moment when the mixture is sparked would be electronically or mechanically carried out, or in any other thereto apprpriate way. Advantages of this invention are mainly in the facts; that herewith completely avoided are complex transformations of reciprocating motion into circular one and vice versa; that with devices having this type of a rotary pistons it is possible to obtain maximum torque; working process of thesedevices is uniform and efficiency is improved (higher percent of exploitation) as they have no idle run; that the noise is reduced; that shapes of rotary pistons, once or several times indented protrusions from one side or from both sides prevent the occurence of additional loading on the shafts during revolving, and particulaly at high speeds; that auxiliary recesses on each to other engaged rotary pistons in their housing, during the working process, enable smooth transition of working protrusions from the zone of overpressure into the zone of underpressure, with no loss (i.e. with minor, irrelevant losses); that there is no direct contact among the pistons themselves nor with the housing, and therewith avoided is detrition (wearing out) and therewith prolonged is the working life; that the rotary piston (being important for the majority of their shapes and this is due to the function it carries out) is equally efficient whether revolving in one or in the other direction; that there is no need for complex systems for lubrication; that inside the piston housings at the separating wall and the cover i.e. elements that close the pistons from both sides, there are recesses, channels around the gaskets (holes for the shaft or around the bearings), so as to accomodate therein the quantity (the quantities being so small that, during the working process of the device, these would go through the separating wall - cover and the pistons) of fluid from the part of the piston housing wherein overpressure prevails and through the outlet it would be directed into the part of the piston housing wherein prevailing is underpressure (toward the inlet part) this is of significant importance particularly with high and extremely high pressures and for the purpose of protecting the gaskets and bearings and to prevent fluid from flowing into the adjacent housings or outside.

Short description of the figures of drawing

Invention is described in details in the examples of embodiment represented in the drawings where:

Figure 1- shows a lateral view at the assembly with a pair of the gears and a pair of engaged double-sided working auxiliary rotary pistons A-G,

Figure 2 - shows a top view at the assembly,

Figure 3 - shows a front view at the assembly,

Figure 4 - shows an isometric drawing of the assembly, Figure 5 - shows a cross section D-D from Fig. 1 ,

Figure 6 - shows a cross section E-E from Fig. 1 ,

Figure 7- shows a cross section F-F from Fig. 3,

Figure 8 - shows an isometric drawing of the cross section of the whole assembly as seen 90 along the line of cross section F-F from Fig. 3.

Figure 9 - shows a disassembled assembly from Fig. 1-8,

Figure 10 - shows a lateral view at the assembly, as to the second embodiment, with one pair of gears and two pairs of double-sided working auxiliary rotary pistons E-G,

Figure 11- shows a top view at the assembly,

95 Figure 12 - shows a front view at the assembly,

Figure 13 - shows an isometric drawing of the assembly,

Figure 14 - shows a cross section A-A from Fig. 12,

Figure 15 - shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from Fig. 12,

00 Figure 16 - shows a cross section B-B from Fig. 10,

Figure 17 - shows a cross section C-C from Fig. 10,

Figure 18 - shows a cross section D-D from Fig. 10,

Figure 19 - shows the assembly from Fig. 10-18 disassembled,

Figure 20 - shows a lateral view at the assembly, as to the third embodiment, with one pair 05 of gears and two pairs of double-side working auxiliary rotary pistons E-G,

Figure 21 - shows a top view at the assembly,

Figure 22 - shows a front view at the assembly,

Figure 23 - shows an isometric drawing of the assembly, Figure 24 - shows a cross section A-A from Fig. 22,

Figure 25 - shows an isometric drawing of the whole assembly along the line of cross section A-A from Fig. 22,

Figure 26 - shows a cross section B-B from Fig. 20,

Figure 27 - shows a cross section C-C from Fig. 20,

Figure 28 - shows a cross section D-D from Fig. 20,

Figure 29 - shows a disassembled assembly from Figs. 20-28,

Figure 30 - shows a lateral view at the assembly, as to the fourth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons E-G,

Figure 31 - shows a top view at the assembly,

Figure 32 - shows a front view at the assembly,

Figure 33 - shows an isometric view of the assembly,

Figure 34 - shows a cross section A-A from Fig. 31,

Figure 35 - shows a cross section B-B from Fig. 30,

Figure 36 - shows a cross section C-C from Fig. 30,

Figure 37 - shows a cross section D-D from Fig. 30,

Figure 38 - shows the assembly from Figs. 30-37 disassembled,

Figure 39 - shows a lateral view at the assembly, as to the fifth embodiment, with one pair of gears and a pair of double-sided working auxiliary rotary pistons C-G,

Figure 40 - shows a front view at the assembly,

Figure 41 - shows a top view at the assembly,

Figure 42 - shows an isometric view at the assembly,

Figure 43 - shows a cross section A-A from Fig. 39, Figure 44 - shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from Fig. 39,

Figure 45 - shows a cross section B-B from Fig. 39,

Figure 46 - shows a cross section C-C from Fig. 39

Figure 47 - shows the assembly from Figs. 39- 46 disassembled,

Figure 48 - shows a lateral view at the assembly, as to the sixth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G_x

Figure 49 - shows a top view at the assembly,

Figure 50 - shows a front view at the assemby,

Figure 51 - shows an isometric drawing of the assembly,

Figure 52 - shows a cross section A-A from Fig. 49,

Figure 53 - shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from Fig. 49,

Figure 54 - shows a cross section B-B from Fig. 48,

Figure 55 - shows a cross section C-C from Fig. 48,

Figure 56 - shows a disassembled assembly from Fig. 48-55,

Figure 57 - represents a front view at the assembly, as to the seventh embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,

Figure 58 - shows a top view at the assembly,

Figure 59 - shows a lateral view at the assembly,

Figure 60 - shows an isometric drawing of the assembly,

Figure 61 - shows a cross section A-A from Fig. 59, Figure 62 - shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from Fig. 59,

Figure 63 - shows a cross section B-B from Fig. 58,

Figure 64 - shows a cross section C-C from Fig. 58,

Figure 65 - shows a view of disassembled assembly from Fig. 57-64,

Figure 66 - shows a top view of the assembly, as to the eighth embodiment, with five gears and two pairs of double-sided working auxiliary rotary pistons C-G

Figure 67 - shows a front view at the assembly,

Figure 68 - shows a lateral view at the assembly,

Figure 69 - shows an isometric drawing of the assembly,

Figure 70 - shows a cross section A-A from Fig. 68,

Figure 71 - shows a cross section B-B from Fig. 66,

Figure 72 - shows a cross section C-C from Fig. 66,

Figure 73 - shows the assembly from Fig. 66-72 disassembled,

Figure 74 - shows a top view of the assembly, as to the ninth embodiment, with one pair of gears, one double-sided working rotary piston A and one double-sided auxiliary rotary piston G,

Figure 75 - shows a lateral view at the assembly,

Figure 76 - shows a front view at the assembly,

Figure 77 - shows an isometric drawing of the assembly,

Figure 78 - shows a cross section A-A from Fig. 75,

Figure 79 - shows a cross section B-B from Fig. 74,

Figure 80 - shows a cross section C-C from Fig. 74, Figure 81 - shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from Fig. 75,

Figure 82 - shows the assembly from Fig. 74-81 disassembled,

!80 Figure 83 - shows a top view of the assembly, according to the tenth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,

Figure 84 - shows a front view at the assembly,

Figure 85 - shows a lateral view at the assembly,

Figure 86 - shows an isometric drawing of the assembly,

:85 Figure 87 - shows a cross section A-A from Fig. 85,

Figure 88 - shows an isometric drawing of the whole assembly along the line of cross section A-A from Fig. 85,

Figure 89 - shows a cross section B-B from Fig. 83,

Figure 90 - shows a cross section C-C from Fig. 83,

90 Figure 91 - shows the assembly from Fig. 83-90 disassembled,

Figure 92 - shows a top view at the assembly, as to the eleventh embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons F-H,

Figure 93 - shows a lateral view at the assembly,

Figure 94 - shows a front view at the assembly,

95 Figure 95 - shows an isometric drawing of the assembly,

Figure 96 - shows a cross section A-A from Fig. 93,

Figure 97 - shows an isometric drawing of the cross section of the whole assembly through the section A-A from Fig. 93,

Figure 98 - shows a cross section B-B from Fig. 92, JOO Figure 99 - shows a cross section C-C from Fig. 92,

Figure 100 - shows the assembly from Fig. 92-99 disassembled,

Figure 101 - shows a top view of the assembly, as to the twelfth embodiment, with three gears, one double-sided auxiliary rotary piston G and two double-sided working auxiliary rotary pistons A ,

S05 Figure 102 - shows a lateral view at the assembly,

Figure 103 - shows an isometric drawing of the assembly,

Figure 104 - shows a cross section D-D from Fig. 102,

Figure 105 - shows an isometric drawing of the assembly

Figure 106 - shows a cross section B-B from Fig. 101 ,

HO Figure 107 - shows a cross section C-C from Fig. 101,

Figure 108 - shows a lateral view at the assembly, as to the thirteenth embodiment, with four gears, one double-sided auxiliary rotary piston G and three double-sided working rotary pistons A,

Figure 109 - shows a front view at the assembly,

il5 Figure 110 - shows a top view at the assembly,

Figure 111 - shows an isometric drawing of the assembly,

Figure 112 - shows a cross section D-D from Fig. 108,

Figure 113 - shows a cross section E-E from Fig. 108,

Figure 114 - shows a cross section F-F from Fig. 108,

»20 Figure 115 - shows a view at disassembled assembly from Figs. 108-114,

Figure 116 - shows a top view of the assembly, according to the fourteenth embodiment, with five gears, four double-sided working rotary pistons A and one double-sided auxiliary rotary piston G , Figure 117 - shows a front view at the assembly,

Figure 118 - shows an isometric drawing of the assembly,

Figure 119 - shows a cross section A-A from Fig. 116,

Figure 120 - shows an isometric drawing of the whole assembly along the line of cross section A-A from Fig. 116,

Figure 121- shows a cross section B-B from Fig. 116,

Figure 122 - shows a cross section C-C from Fig. 116,

Figure 123 - shows a view at disassembled assembly from Fig. 116-122,

Figure 124 - shows a top view of the assembly, as to the fifteenth embodiment, with seven gears, six double-sided working rotary pistons A and one hexagonal auxiliary rotary piston G,

Figure 125 - shows a cross section H-H from Fig. 124,

Figure 126 - shows a cross section G-G from Fig. 124,

Figure 127 - shows a cross section K-K from Fig. 124,

Figure 128 - shows isometric drawing of the assembly,

Figure 129 - shows a top view of the assembly, as to the sixteenth embodiment, with one pair of gears, one single-sided working rotary piston A and one single-sided auxiliary rotary piston G,

Figure 130 - shows a front view at the assembly,

Figure 131 - shows a lateral view at the assembly,

Figure 132 - shows an isometric drawing of the assembly,

Figure 133 - shows a section A-A from Fig. 131 ,

Figure 134 - shows an isometric drawing of the whole assembly along the line of cross section A-A from Fig. 131 , Figure 135 - shows a section B-B from Fig. 129,

Figure 136 - shows a section C-C from Fig. 129,

Figure 137 - shows a disassembled assembly from Fig. 129-136,

Figure 138 - shows embodiment of the body 6 with working protrusions A and one auxiliary recesses G,

Figure 139 - shows embodiment of the body 6 with working protrusions B and auxiliary recesses G,

Figure 140 - represents embodiment of the body 6 with working protrusions D and auxiliary recesses G,

Figure 141 - represents embodiment of the body 6 with working protrusions F and auxiliary recesses H,

Figure 142 - represents cross section of the piston housings with a pair of double-sided working-auxiliary pistons A-G where the flow of fluid through the housing during the operation of the device is indicated,

Figure 143 - shows a front view at two double-sided working-auxiliary rotary pistons A-G, L - indicates the length of the pistons ( all the pistons both working and auxiliary ones) in all the devices in Figures from 1 to 174.

Figure 144 - shows a top view at two double-sided working - auxiliary rotary pistons A-G,

Figure 145 - shows a lateral view at two double-sided working - auxiliary rotary pistons A-G,

Figure 146- shows an isometric drawing of two double-sided working- auxiliary rotary pistons A-G,

Figure 147 - shows front view at two double-sided working - auxiliary rotary pistons B-G,

Figure 148- shows top view at two double-sided working- auxiliary rotary pistons B-G,

Figure 149 - shows a lateral view at two double-sided working- auxiliary rotary pistons B-G,

Figure 150 - shows an isometric ilustration of two double-sided working- auxiliary rotary pistons B-G, Figure 151 - shows a front view at two double-sided working - auxiliary rotary pistons D- G,

75 Figure 152 - shows a top view at two double-sided working- auxiliary rotary pistons D-G,

Figure 153 - shows a lateral view at two double-sided working- auxiliary rotary pistons D-G,

Figure 154 - shows an isometric drawing of two double-sided working - auxiliary rotary pistons D-G,

Figure 155 - shows a front view at two double-sided working -auxiliary rotary pistons F-H,

80 Figure 156 - shows a top view at two double-sided working - auxiliary rotary pistons F-H ,

Figure 157 - shows a lateral view at two double-sided working - auxiliary rotary pistons F-H,

Figure 158 - shows an isometric drawing of two double-sided working - auxiliary rotary pistons F-H,

Figure 159 - shows a front view at a double-sided working rotary piston A and a double- 85 sided auxiliary working rotary piston G,

Figure 160 - shows a top view at a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,

Figure 161 - shows a lateral view at a double-sided working rotary piston A and a double- sided auxiliary rotary piston G,

90 Figure 162 - shows an isometric drawing of a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,

Figure 163 - shows front view at a single-sided working rotary piston A and single-sided auxiliary rotary piston G,

Figure 164 - shows a top view at a single-sided working rotary piston A and a single-sided 95 auxiliary rotary piston G,

Figure 165 - shows a lateral view at a single-sided working rotary piston A and a single- sided auxiliary rotary piston G,

Figure 166 - shows an isometric drawing of a single-sided working rotary piston A and a single-sided auxiliary rotary piston G, WO Figure 167 - shows a front view at a four-sided working rotary piston A and a four sided auxiliary rotary piston G,

Figure 168 - shows a top view at a four-sided working rotary piston A and a four-sided auxiliary rotary piston G,

Figure 169 - shows a lateral view at a four-sided working rotary piston A and a four-sided 105 auxiliary rotary piston G,

Figure 170 - shows an isometric drawing of the four-sided working rotary piston A and a four- sided auxiliary rotary piston G,

Figure 171 - shows a front view at a three-sided working rotary piston A and a three-sided auxiliary rotary piston G,

HO Figure 172 - shows a top view at a three-side working rotary piston A and a three-sided auxiliary rotary piston G,

Figure 173 - shows a lateral view at a three-sided working rotary piston A and a three sided auxiliary piston G, and

Figure 174 - shows an isometric drawing of a three-sided working rotary piston A and a I- 15 three sided auxiliary rotary piston G.

Detailed Description of Invention

Rotary piston has a body 6 of a cylindrical - semicyllindrical shape, integrated with a shaft or with a hole in the centre that fits in the diameter of the shaft, with any (working) protrusion (A₁B₁C₁D₁E₁F) or auxiliary recess (G₁H) individually or combined with several

ΩO protrusions and recesses as illustrated and explained in Figures 138 to 174 and in the devices from Fig. 1 to 137 .

Working longitudinal protrusion and/or protrusions is of a cylindrical - semicylindrical or other shape on the body 6 of the rotary piston, in parallel with an axis of the body 6 of the rotary piston, for easier identification of the shapes, each shape is separately marked with Ω5 one of the following alphabets; ,,/T ,,B" ,,C" JD" JE" JF" .

Auxiliary longitudinal recess/recesses is a cylindrical - semicylindrical shape on the body 6 of the rotary piston, in parallel with an axis of the body 6 of the rotary piston, for facilitating the recognition, each shape is separately marked with one of the following alphabets such as; ,,G" ,,H"

t30 - ( A ) is a protrusion of a cylindrical - semicylindrical shape having a radius r i.e. a height v, in the devices according to the variants of embodiment: 1,4,6, 7,9, 10, 12, 13, 14, 15, 16 and according to the figures from 138 to 141, then 142 to 146 , 159 to 174,

- (B) is a protrusion, with a radius r, shaped as an indented (along the length) cylinder- semicylinder, with a radius R2 by a height v2 , once from one side, figures 139, and from 05 147 to 150

- (C) is a protrusion, of a radius r, shaped as an indented (along the length) cylinder- semicylinder, with a raius R2 by a height v2, once per both sides in the devices according to the ways of embodiments: 5 and 8 in figures 39 to 47 and 66 to 73,

- (D) is a protrusion, of a radius r, shaped as an indented (along the length) cylinder - WO semicylinder, with radii R2 and R3 by the heights v2 and v3, from both sides twice, as to the figures 140 and from 151 to 154,

- (E) is a protrusion, with a radius r, shaped as indented (along the length) cylinder - semicylinder, four times per both sides similar to the above shape ,,D", except for being divided into four radii (R2,R3,R4 and R5) and four heights (v2,v3,v4 and v5), in the devices

W5 according to the embodiments: 2 and 3 in figures 10 to29,

- (F) is a protrusion, of a radius r, in the shape of a truncated cylinder - semicylinder with a radius Rf by a height v, in figure 141, then in the device as to the eleventh embodiment in figures 92 to 100,

- (G) is a recess in the shape of a cylinder - semicylinder, with a radius r , height v1 in 50 the devices as to the embodiments: 1,2,3,4,5,6,7,9, 10, 12, 13, 14, 15, 16 and figures from 138 to 140, and then 142 to 154 , 159 to 174,

- (H) is a recess, having a radius r1 , shaped as a truncated cylinder-semicylinder where the length of a radius Rh extends, by a height v1- adjusted to the shape of the protrusion (F) .

55 Rotary pistons are protrusions (A₁B₁C₁D₁E₁F ) and recesses (G₁H) and also more protrusions and recesses (or by combination of any of the shapes) in the body 6, for the sake of clearer description, these are identified i.e. grouped as the following; - Double-sided working - auxiliary rotary piston has: a body 6 of a cylindrical- semicylindrical shape with a hole for the shaft in the centre, or it is integrated with a shaft,

160 that has on itself two (working) protrusions (A₁B₁C₁D₁E, or F) and two (auxiliary) recesses of the shape (G or H) arranged in alteration by the angles of 90 DEG.

- Double-sided working rotary piston has a body 6 of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, whereon are two (working) shaped protrusions ( A₁B₁C₁D₁E or F), arranged at the angle of 180 DEG.

165 - Double-sided auxiliary rotary piston has a body 6 of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, wherein are two (auxiliary) shaped recesses (G or H)₁ arranged at the angle of 180 DEG.

-Single-sided working rotary piston has a body 6 of a cylindrical - semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, whereon is one 170 (working) shaped protrusion (A₁B₁C₁D₁E or F) .

-Single-sided auxiliary rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, wherein is one (auxiliary) shaped recess (G or H).

- Three-sided working rotary piston has a body 6 of a cylindrical-semicylindrical shape 175 with a hole for the shaft in the centre or integrated as one part with a shaft, whereon are three (working) shaped protrusions ( A₁B₁C₁D₁E, or F)₁ arranged at the angles of 120 DEG.

- Three-sided auxiliary rotary piston has a body 6 of a cylindrical - semicylindrical shape with a hole in the centre for the shaft or integrated as one part with the shaft, wherein are three (auxiliary) shaped recesses (G or H), arranged at the angles of 120 DEG.

180 - Four-sided working rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, whereon are four (working) shaped protrusion ( A₁B₁C₁D₁E₁ or F)₁ arranged at the angles of 90 DEG.

- Four sided auxiliary rotary piston has a body 6 of a cylindrical- semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, wherein are

185 four (auxiliary) recesses (G or H)₁ arranged at the angles of 90 DEG.

According to the invention, rotary pistons are shaped to have various protrusions and recesses (represented in figures from 138 to 174 and in the devices from figure 1 to 137) and the choice among these depends on the purpose and the type of fluid that it will be used for.

190 In the following (outlined) four examples of the cross section the explanation for the embodiment of the four main shapes (of working) protrusions and two main shapes (of auxiliary) recesses together with the body is given, and according to these are achieved the shapes used in the devices represented in figures 1 to 137 and figures 142 to 174.

Body 6 having (working) protrusions A; (auxiliary) recesses G, represented in figure 138 , i95 are achieved so that the body 6 is of a circular cross section with a radius R and a central circular hole of radius R1 (when the body and the shaft are integrated as one part, R1 fits in the radius of the shaft). Along the longer axis are achieved two semicircular (working) protrusions A with a radius r and the height v and vertically on the shorter axis, there are two symmetrical semicircular (auxiliary) recesses G with a radius r1 and the height v1. All

00 the mentioned parameters can be altered so as to comply these to the needs (technical characteristics) for which the device with the rotary pistons will be used.

Body 6 having (working) protrusions B ; (auxiliary) recesses G, represented in Figure 139, are achieved so that the body 6 is of a circular cross section with a radius R and with a central circular hole of a radius R1 (when the body and the shaft are integrally achieved, R1

05 fits in the radius of the shaft). Along the longer axis are achieved two semicircular, from one side indented, having a radius R2, by a height v2, (working) protrusions B having a radius r and the height v and vertically on the short axis two symmetrical semicircular (auxiliary) recesses G having a radius r1 and a height v1. All the mentioned parameters (physical properties) may be altered so as to comply to the requirements (technical characteristics)

10 that the device with rotary pistons is to be used for.

Body 6 having (working) protrusions D; (auxiliary) recesses G, represented in Figure 140, are achieved so that the body 6 of a circular cross section with a radius R, and a circular hole of a radius R1 in the centre, (the body and the shaft when achieved integrally, then R1 fits in the radius of the shaft). Along the long axis two semicircular, indented twice per both 15 sides, with radii R2 and R3, by the heights v2 and v3, (working) protrusions D are achieved with a radius r and the height v and vertically to the short axis, two symmetrical semicircular (auxiliary) recesses G with a radius r1 and a height v1. All the mentioned paramters may be altered so as to make it compatible to the requirements (technical characteristics) that the device with rotary pistons is to be used for. i20 Body 6 having (working) protrusions F; (auxiliary) recesses H, represented in Figure 141 , are achieved so that the body 6 of a circular cross section with a radius R and a central circular opening of the radius R1 (when the body and the shaft are integrated as one part, then R1 and the radius of the shaft are matched). Along the longer axis, there are achieved two semicircular truncated, by a radius Rf at the height v, (working) protrusions F with a

>25 radius r and height v and vertically to the short axis there are two symmetrical truncated, by radius Rh at the height v1 , (auxiliary) recesses H having radius r1 and height v1. All the mentioned parameters, can be altered to make them complied to the requirements (technical characteristics) that the device with rotary pistons is to be used for.

General explanation according to the invention, either in the case of an assembly

30 comprising two or more gears engaged over the shaft with two or more bodies (with a working i.e. auxiliary recesses), on the way of functioning, being applicable for variant solutions, that would be as the following: bodies 6 with (working) protrusions A₁B₁C₁D₁E or F and auxiliary (recesses) G or H, said shortly rotary pistons in the piston housings 11-11a, with its top and bottom flat surfaces are in the contact line with the inside surfaces of the

35 separating walls 7-7a and covers 1-1 a, that close the pistons (and can have even bigger clearance when used for fluids with impurities); bodies 6 are firmly connected (or integrated as one part with shafts) over the shafts 4-5-5a with gears 10-1Oa being set in the gear housing 9 (wherein there is a certain quantity of oil, the quantity is sufficient for lubrication) where engaged to each other are driving gears 10a - 10 with one or more driven gears 10

40 and are aimed to transmit power and align the revolvment of rotary pistons, where the piston housing 11-11a and the gear housing 9 are separated by the separating wall 7-7a whereon are holes for the shafts 4-5-5a; revolving together with the body 6 (working) protrusions A₁B₁C₁D₁E, or F slide with its tips (along the contact line) along the internal side of the pison housing (and can have higher clearance when used for fluids with impurities) developing

45 therewith the underpressure (a certain degree of vacuum) and in front these exert thrust or the thrust is exerted thereto (when used as a turbine or a motor, etc.); auxiliary recesses G and H are intended to enable smooth transition of (working) protrusions from the zone of overpressure to the zone of underpressure and at the same time to obstruct the flow of fluids from the zone of overpressure into the zone of underpressure: in the piston housing (11-11a)

50 there can be present even a certain quantity of oil that would enable more complete sealing and improved efficacy (there can be even a constant flow of the appropriate quantity of the cooled oil intended, among other things, for cooling the device provided that it is needed) when the device functions as a vacuum pump or a compesssor; inlet - outlet holes 20 for piston housings 11 or at the rear cover 1 are either of different shapes or round with a

55 thread, so that the installation connections can be screwed therein. Firm connection between the body 6 of rotary pistons and shafts 4-5-5a, or gears 10- 10a and shafts 4-5-5a respectively can be achieved in any known and thereto appropriate way. These can be integrated in one part: body with the shaft 4-5-5a or the gear 10- 10a with the shaft 4-5-5a. Bearings 2 wherein embedded are the shafts in the assemblies, can Ϊ60 be of various types and are chosen as to the dimensions and toughness or resistance against anticipated loadings and temperatures and as to the lubrication methods, and depending on the intended use of the device (ball bearings, roller bearings, needle bearings, sliding bearing and other bearings...)

Shafts 4-5-5a of the device wherein are bodies 6 with pistons and gears 10-10a, are

>65 embedded therein; the separating wall 7 in the centre of the device, and the rear cover 1-1 a that close the piston housing and the pistons themselves; then, embedded are in the separating wall 7 in the centre, and the front cover 12 that close the gear housing 9; embedded in the front cover 12 and the rear cover 1 ; embedded only in the separating wall

7 that separates the gear housing 9 from the piston housing 11. In some embodiments,

»70 when the device is integrated as one part with an engine (or a generator) there can be used an elongated shaft of the engine (or a generator), which is already embedded, carrying on itself one rotary piston and one gear per given device.

In all the assemblies, the gaskets 8 are chosen as to the type of fluid, then depending on their toughness to pressure and temperature (heat) that these are exposed to and can be of >75 all types (suitable for desired assemblies).

Depending on the type of material, intended use and other functional characteristics of the device such as: speed of fluid flow, type of fluid, pressures of fluid (small-high or extremely high) and the heat that the fluids either have or develop during the working process, are important factors to determine: all the dimensions of the piston housings 11- i80 11a; all dimensions of the separating walls 7-7a ; all dimensions of rear covers 1-1 a; all dimensions of bodies 6; all dimensions and shapes of working protrusions (A₁B₁C₁D₁E₁F) and auxiliary recesses (G₁H); all types of shafts 4-5-5a; all dimensions and types of gears (10,10a) that can be of any, but for the given devices only the appropriate shape; and all the dimensions of type and number (for example on the assemblies for high pressures more

!85 screws are required and vice versa) above others, for the given assemblies of the chosen and fitting to each other elements complying with the set out requirements.

Elements of the assembly of the device; rear covers 1-1 a of the piston housings, front covers 12 of the gear housings, separating walls 7, gear housings 9, piston housings 11- 11a, each of these being achieved separately, or several elements achieved integrally such 590 are; the rear cover 1 integrated with the piston housing 11-11a; the front cover 12 integrated with the gear housing 9; the separating wall 7 integrally achieved with the gear housing 9; separating wall 7 integrally achieved with the piston housing 11 , and this is important when making decision about the manufacturing process, when the choice of the most favorable one for the anticipated assemblies is being made.

>95 Connecting all the parts to each other (housings, covers, separating walls), into the solid connection can be achieved in all the known and for the given assemblies appropriate ways.

Assemblies can consist elements (piston, housing, separating wall, cover ..) that are made, or of various types of materials (alloys) or combination of two or more types of

>00 material. Considering, e.g. that pistons are in a part or as entirely made of some type of rubber that (to a certain rate) compensates possible presence of some foreign bodies (rigid impurities) in the fluid during the working process.

Inside the piston housing 11-11a, at the separating wall 7-7a and the rear cover 1-1a, i.e. elements that close the rotary pistons from both sides, are made channels 25 (see in the

»05 second and the third embodiments of the device) being achieved circularly around the gaskets 8 itself and around the hole for the shaft i.e. the bearing 2, with the protrusion toward the duct 20 that inlets fluid into the device, and can be of different dimensions, shapes, diameters and profiles correlated in the said device. This is done so that it completely fulfills its purpose and therewith it makes no damage to the stability and

•10 efficiency of the given device. It is recommended that in all devices recesses or channels are worked out. This is done to unload the protection of gaskets 8, holes for the shaft and bearings 2, that are in the separating walls and covers from the fluid pressure inside the device and this has significant importance particularly with high and extremely high pressures.

• 15 Device according to the invention, as represented in figures 1 to 9, shows a device with a pair of gears and a pair of double-sided working - auxiliary rotary pistons A-G (double- sided working - auxiliary rotary piston A-G consists of a body 6 with a hole for the shaft, two (working) protrusions A and two (auxiliary) recesses G arranged in alteration at the angles of 90 DEG) and can be best used as a turbine, a compressor, a pump, a vacuum apparatus, a

20 motor ..., consisting of a piston housing 11 with inlet - outlet connections 20, a gear housing 9, a separating wall 7 a front cover 12 with a hole for shaft 4 and a rear cover 1, connected to each other by bolts 16 going through the appropriate holes 16x and are screwed in the body of the rear cover 1 , in the piston housing 11 , there is set a pair of working - auxiliary rotary pistons A-G, firmly connected with gears 10, in the gear housing 9, over the shafts 4

>25 and, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for shafts 4 and 5 embedded in the front cover 12 and the separating wall 7 by bearings 2, the auxiliary guides 22 are graved into the approprate holes on the elements and are useful to direct precise alignment when connecting the elements of the assembly, the gaskets 8 in the separating wall 7 and the front cover 12 prevent fluid to

»30 flow from one housing into the other and outside. The external shape of the device can be round, elliptic .... etc. ; device can be used wherever there is a need; to create vacuum, to compress the compressible fluids, to pump fluids, to develop desired pressure and as a driving i.e. driven hydraulic - pneumatic machine; device can be used as a part of any type of engine (generator) or system; connected in an indirect connection such are cardan

>35 shafts, electromagnetic lamelias, pulleys and in all known and therefore appropriate modes. Device can be driven even manually (examples of pumps for decanting vine, water, fuel and etc.). Driving shafts of the device can have an outlet in the cover for the piston housings, and as well as through both covers. The inlet - outlet connections 20 can be on the piston housings 11 or on the rear cover 1 of that housing and as a combination of the inlet on the

40 housing and the outlet on the cover and vice versa. When using the device for higher pressures it has to have channels 25 achieved (according to the second embodiment, as in Figures 10-19) to unload i.e. protect the gaskets and bearings from high-pressure fluid. Length L (thickness) of the pistons and the length of the housings can be altered (proportionally), i.e. increased or decreased. Sealing the contact surfaces between the

45 elements of the assembly can be accomplished in all existing and thereto suitable modes. This device can be with (working) protrusions of any of the mentioned shapes; A ; B ; C ; D ; E or F and depending on these the choice ((of auxiliary) recesses))_among shapes G or H, is made.

Device according to the invention, as represented in Figures 10 to 19, represents a 50 device with a pair of gears and two pairs of double-sided working-auxiliary rotary pistons E-G (double-sided working- auxiliary rotary piston E-G consists of a body 6 with a hole for the shaft, two (working) protrusions E and two (auxiliary) recesses G alterably arranged at the angles of 90 DEG) and can be best used as a pump, a compressor, it consists of the piston housing 11 integrated with the separating wall 7 and inlet-outlet connections 20, piston 55 housing 11a integrated with the rear cover 1 and inlet-outlet connections 20, gear housings 9 integrated as one part with the front cover 12 and the separating wall 7a, connected to each other by bolts 16 and 18 that go through thereto matching holes 16x and are screwed in the body of the piston housing 11a, and in the piston housings 11 and 11a there is set one pair of doube-sided working -auxiliary rotary pistons E-G of various lengths (thickness), being over the shafts 4 and 5 firmly connected to the gears 10 in the gear housing 9; at the separating walls 7 and 7a there are holes for shafts 4 and 5, at the front cover 12 and the rear cover 1 are holes for shafts 4, shafts 4 and 5 are embedded in the separating wall 7 and the rear cover 1 , the auxiliary guides 22 grooved into the appropriate holes on the elements and are intended to direct precise alignment when connecting, the gaskets 8 are positioned in the separating walls 7 and 7a then in the front cover 12 and the rear cover 1 prevent fluids to flow from one housing to the other and outside the device, prevent the contact between the working fluids and the bearings, recess 25 at the separating walls 7 and 7a and also at the rear cover 1 are intended to unload i.e. protect the gaskets and bearings from high- pressure fluid, screws 15 close the openings for oil for lubricating the gears 10 in the gear housing 9, bolts 18 and nuts 17 are one of the modes by means of which the device is secured. Length-L (thickness) of the pistons of the device can increase or decrease thus leading to different lengths of the piston housings and its adjusting as to the lengths of the pistons. The external shape of the device can be round, elliptic ... etc. Sealing of the contact surfaces between the elements of the assembly can be achieved in all so far known and thereto appropriate ways. This device can be with (working) protrusions of any mentioned shape; A ; B ; C ; D ; E or F and depending on it, the choice of the auxiliary pistons (recesses) among shapes G or H, is made. Device can be a part of any type of engines or systems; it can be directly driven by any type of motor; and it can be fitted therein or connected with motors by means of an indirect connection such are cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate ways. Inlet - outlet connections 20 for fluids into the piston housing can be on the piston housing or on the cover (or separating wall respectivelly) of the housing and it can be combined (inlet on the housing and outlet on the cover i.e. separating wall and vice versa) and can have a round or some other shape. It can be best used as a pump when there is a need for such a model and it can be in case of fruitgrocering sprinklers or drawing or carrying sprinklers, in such a case one working chamber would be used by sprinklers and the other one, at the same time, would be in the function of a mixer for the sprinkling composition or in some other embodiments one chamber would be used as a pump for the composition while the other would be used for compressing air (wherein the shape of the pistons would be A-G),

Device according to the invention, as represented in figures 20 to 29, represents a device with a pair of gears and two pairs of double-sided working-auxiliary rotary pistons E-G (double-sided working auxiliary rotary piston E-G consists of a body 6 with a hole for the shaft, two (working) protrusions E and two (auxiliary) recesses G) and is best used as a combination of a fluid motor with a fluid pump or a vacuum pump, it consists of the piston housing 1 1 achieved in one part with the separating wall 7 and the inlet - outlet connections 20, then piston housing 11a, integrally achieved with the front cover 12 and the separating wall 7a being each to other coupled by bolts 16 and 18 that go through thereto matching holes 16x and are screwed in the body of the piston housing 11a, in both the piston housings 11 and 11a separated from each other by the separating wall 7a there is set a pair of double-sided working-auxiliary rotary pistons E-G of different lengths (thickness), being firmly connected with gears 10 in the gear housing 9, over the shafts 5; at the separating walls 7 i 7a are holes for shafts 5 embedded by bearings 2 in the separating wall 7 and the rear cover 1 , the auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct precise alignment when connecting, the gaskets 8 set in the separating walls 7 and 7a and also in the rear cover 1 prevent fluid to flow from one housing into the other and outside the device i.e. prevent working fluids to come in contact with bearings 2, recess 25 at the separating walls 7 and 7a and at the rear cover 1 are aimed to unload i.e. protect the gaskets and bearings from high-pressure fluid, bolts 15 close the outlets for oil that lubricate the gears 10 in the gear housing 9, bolts 18 and nuts 17 are one of the modes to secure the device. Length-L (thickness) of the pistons of the devices can be higher or smaller implying therewith the changes in the length of the housing and adjusting it to the lengths of the pistons. The external shape of the device can be round, elliptic ... etc. Sealing of the contact surfaces between the elements of the assembly can be done in all known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A ; B ; C ; D ; E or F and depending on these the choice of (auxiliary) recesses of the shape G or H, is made. Device can be separate or a part of any type of engines or systems. Inlet-outlet connections for inleting the fluid into the piston housing can be on the piston housing or on the cover of the housing and can be achieved as a combination of these two (inlet on the housing and the outlet on the cover and vice versa) and can be round or some other shapes. This device can be used wherever injectors or massive multistage pumps were used so far; it can be positioned in very deep wells above water surface therein and it can function as the following: e.g. the device (pump as to the first embodiment) is positioned on the surface of the ground and driven by some of the devices, is used for pumping water into the installation pipeline connected with the closed circular cycle with one part of the given device in the well, where that part of the device in this case would have the role of the hydromotor then, upon its going through it by using the other installation pipeline, water returns into the pump on the surface of the ground, while the other part of the device in the well pumps out the water from the well to the surface of the ground through a separate installation pipeline. In the second embodiment, an open cycle can be made so that a certain quantity of water (from the installation pipeline that is a part of the device pumps out water from the well into the surface of the ground) is enough for working process of a pump and a hydromotor, through the second installation pipeline by the pump on the surface of the ground pumps into the hydromotor (a part of the engiine in the well) and when going out it would be discharged into the well. Device can be used in ^r35 many cases, e.g. ; by connecting the compressed fluid or a fluid under pressure in the part of the device that would be used as a fluid motor while the other would be a part of the device and would be used as a vacuum apparatus, pump or a compressor.

Device according to the invention, represented in figures 30 to 38, represents a device with a pair of gears and two pairs of double-sided working auxiliary rotary pistons A-G

'40 (double-sided working auxiliary rotary piston A-G consists of one body 6 integrated as one part with the shaft and the other body 6 with a hole for the shaft, having per each two (working) protrudings A and per each two (auxiliary) recesses G) and is best used as a combination of a fluid motor with a pump (or vacuum pump). Consists of the piston housings 11 and 11a with inlet outlet recesses 20c and 20a, covers 1 and 1a with inlet outlet

45 connections 20, gear housing 9 achieved integrally as one part with the separating wall 7, and the separating wall 7a, being connected to each other by bolts 16 and 16b that go through the appropriate holes 16x and are screwed in the body of the piston housing 11a, in both the piston housings 11 and 11a there is one pair of double-sided working - auxiliary rotary pistons A-G of various lengths, and these are over the shafts 5 i 5a firmly connected

50 to the gears 10, in the separating walls 7 and 7a and in the covers 1 and 1a there are holes for the shafts 5 and 5a embedded in the separating wall 7 and in the covers 1 and 1a by bearings 2, the gaskets 8 set in the separating walls 7 and 7a then in the covers 1 and 1 a prevent fluid to flow from one housing into the other i.e. prevent that working fluids come in touch with bearings, the auxiliary guides 22 are grooved into the appropriate hole on the

55 elements and are used to direct precise alignment when connecting., the bolts 15 are screwed into the holes 15a, bolts 16d go through thereto matching holes 16dx on the cover 1 and the piston housing 11 and are screwed in the body of the separating wall 7, the bolts 16c go through thereto matching holes 16cx on the cover 1a and are screwed in the body of the housing 11a, bolts 16a go through thereto matching holes 16ax on the small covers 23

60 that cover the bearings 2 and are screwed in the body of the covers 1 and 1a, ring washers 3 in the separating wall 7a support the gaskets 8 leaning therewith onto the circlips 24, the ring washers 3 in the covers 1 and 1a support the gaskets 8 leaning therewith against the bearings 2, the keys 29 are in the recesses on the shafts 5 and 5a, sealing rings 28 are in the recesses 28a, and the threaded openings 33a for bolts for securing the device. Length -L

65 (thickness) of rotary pistons can be longer or shorter implying therewith the change in the length of the housing and adjusting it to the length of the pistons (e.g. for very high pressures rotary pistons and the housings thereof should be shorter). Sealing of contact surfaces between the elements of the assembly can be achieved to all known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A ; B ; C ; D ; E or F and depending on it choice of the auxiliary (recesses) of the shape G, or H, is done. The device can be separate or a part of any type of engines or systems. Inlet - outlet connections let the fluids into the piston housing can be on the piston housing or on the cover of that housing or achieved as a combination (inlet on the housing and the outlet on the cover and vice versa) and can be round (with a thread) and of other shapes. Wherever injectors were used so far or massive multi stage sinking pumps this, herewith explained device, can replace them; it can be set in deep wells above the surface of water or above the water level and function so that; the pump (taking e.g. device in the first embodiment) is set on the surface of the ground and it pumps into the installation pipeline connected to the closed circular cycle with one part of the given device (where such a part in this case would function as a hydromotor) hence upon going through it, water returns into the pump on the surface of the ground while the other part of the device pumps out the water from the well through the other installation pipeline on the surface of the ground. In the other variant of embodiment, and open cycle can also be made, when a certain quantity of water (from the installation pipeline that the part of the device pumps out from the well onto the surface of the ground) is enough for functioning the pump and the hydromotor while the other installation pipeline pumps into the hydromotor and when going out of it it is drained into the well. The device can be used in many other instances such as e.g.; by connecting the compressed fluid or fluid under pressure into the part of the device that would function as a fluid motor while the other part of the device would be used as a vacuum pump, compressor, pump, etc.

Device according to the invention, represented in Figures 39 to 47, is a device with a pair of gears and a pair of double-sided working-auxiliary rotary pisotns C-G (double-sided working -auxiliary rotary piston C-G consists of a body 6 integrated as one part with a shaft, two (working) protrusions C and two (auxiliary) recesses G) and can be best used as a turbine, a pump, a motor ... it consists of the piston housing 11 with ribbed reinforcement 14 and inlet - outlet connections 20, then the gear housing 9, separating wall 7, front cover 12 and the rear cover 1 , connected to each other by bolts 16 and 16a that go through the appropriate holes 16x and are screwed in the body of the piston housing 11 wherein is set one pair of double-sided working auxiliary rotary pistons C-G, and these are firmly connected or coupled to gears 10 in the gear housing 9 over the shafts 4 and 5, where the piston housing 11 and the gear housing 9 are separated from each other by a separating wall 7 with holes for the shafts 4 and 5 embedded in the front cover 12 and the rear cover 1 and bearings 2, bolts 16b go through thereto matching holes 16bx on the small cover 23 and are screwed in the body of the rear cover 1 , the gaskets 8 set in the separating wall 7, rear cover 1 and front cover 12 prevent the fluid to flow from one housing into the other, and also outside the device, circlips 24 support the gaskets 8 in the separating wall 7 and the front cover 1 , the holes 33 are intended for the bolts by means of which the device is secured, bolts 15 are screwed into the holes 15a. The external shape of the device can be round, elliptic ... etc.; the device can be used wherever it is needed; for pumping the fluid, to achieve pressure and as a driving or driven hydraulic one; the device can be a part of any type of engine (generator) or a system; it can be directly driven by any type of motor; and it can be fitted or connected with engines (generators) by means of an indirect connection as it is with cardanshafts, electromagnetic lamells, pulleys and all other and thereto appropriate modes. Driving shafts in the device can have an outlet through the cover of the piston housing and through the both covers. Inlet - outlet connections 20 can be on the piston housing 11 or on the cover 1 of that housing or in a combined way; inlet on the piston housing 11 and the outlet on the cover 1 and vice versa. In the cases, of the device used for higher pressures it has to have channels fitted (recesses 25 according to the second embodiment from Figures 10-19) to unload i.e. for protection of the gaskets and bearings from the high-pressure fluid. Length (thickness) of the pistons and the length of the housing can be longer or smaller (proportionally). Sealing of the contact surfaces between the elements of the assembly can be achieved in any of known and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A ; B ; C ; D ; E or F and according to which the choice of the shaped (auxiliary) recesses G or H, is made.

Device according to the invention, as represented in Figures 48 to 56, represents a device with a pair of gears and a pair of double-sided working-auxiliary pistons A-G (double sided working auxiliary rotary piston A-G consists from the body 6 together with the shaft, two (working) protrusions A and two auxiliary recesses G) and is best used as a turbine, a compressor, a pump a vacuum apparatus, a motor ... consists of the piston housing 11 with inlet-outlet recesses 20a, then the gear housing 9 achieved integrally as one part with the front cover 12, separating wall 7 and the rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes 16x and are screwed in the gear housing, in the piston housing 11 there is a pair of double-sided working-auxiliary rotary pistons A-G, firmly connected to the gears 10, in the gear housing 9, over the sahfts 4 and 5, where the piston housing 11 and the gear housig 9 are separated from each other by the separating wall 7 whereon are holes for shafts 4 and 5 embedded in the bearings 2 in the front cover 1, bolts 16a go through the appropriate holes 16bx in the rear cover 1 and the piston housing 11 and are screwed in the body of the separating wall 7 wherein ring washers 3 support the gaskets 8 resting against the bearings 2, keys 29 are in the appropriate recessed parts on the shafts 4 and 5, the sealing rings 28 are in the recessed parts 28a, auxiliary guides 22 are grooved into the appropriate holes on the elements and are used to direct precise alignment of these when connecting, bolts 15 close the outlets 15x for oil, in the rear cover 12 there are threaded openings 33 intended for bolts

545 that secure the device. The external shape of the device can be elliptic or have some other - shape; device can be used wherever there is a need; to develop vacuum, for compressiong of compressive fluids, to pump the fluids, to achieve pressure and as a driving i.e. driven hydraulic and pneumatic machine; device can be a part of any type of engine (a generator) or a system; it can be directly driven by any type of motor; as well as it can be fitted therein

»50 or be connected with the engines (generators) by means of an indirect connection, such are cardanshafts, electromagnetic lamellas pulleys and in all other known and thereto appropriate modes. Driving shaft 4 on the device can have an outlet and through the cover 1 of the piston housing. Inlet-outlet connections 20 can-be in the piston housing 11 or in the cover 1 of that housing as well as combined; inlet on the piston housing -11 and the outlet on

»55 the cover 1 and vice versa. In the cases when the applcation of the device demands higher pressures, it has to have fitted (channels 25 according to the second embodiment from Figures 10-19) to unload or disburden i.e. protect the gaskets and the bearings from high pressre fluid. If needed, length (thickness) of the pistons and the length of the housing can be proprtionally increased or decreased. When, e.g. device is intended for use with higher

!60 pressures than its pistons and its housing would be shorter. Sealing of the contact surfaces between the elements of the assembly can be achieved to all known and thereto appropriate ways. This device can be with (working) protrusions of any of the mentioned shapes; A ; B ; C ; D ; E or F and depending on these the choice of (auxiliary) recessed shapes G or H is made.

;65 Device according to the invention, as represented in Figures 57 to 65, is a device with a pair of gears and a pair of double-sided working-auxiliary rotary pistons A-G (double sided working rotary piston A-G consists of a body 6 with a hole for the shaft, two (working) protrusions A and two (auxiliary) recessed parts G) and is best used as a turbine, a compressor, a pump, a vacuum pump, a motor etc. it consists of the piston housing 11 with

I70 inlet-outlet connections 20, then the gear housing 9, the separating wall 7 and the front cover 12 achieved circularly with the semicircular protrusion, and the rear cover 1 , that are connected by bolts 16 that go through the appropriate holes 16x and are screwed in the body of the front cover 12, in the piston houising 1 1 there is set a pair of working auxiliary rotary pistons A-G, and these are firmly connected to the gears 10 in the gear housing 9,

!75 over the shafts 4 and 5, where the piston housing 1 1 and the gear housing 9 are each from other separated by the separating wall 7 whereon are holes for the shafts 4 and 5 which are embedded by the bearings 2 in the separating wall 7, the auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct precise alignment of the elements when connecting, the gaskets 8 in the separating wall 7 and the front cover 12

►80 prevent the fluid to flow from one housing into the other and outside the device, openings 33 on the assembly are for the bolts that fix the device, holes 15 with threads are used for filling oil and are closed by screwing the bolts therein. Device can be made even so that the piston housing 11 with the pistons A-G can be between the front cover 12 and the separating wall 7 and the piston housing 9 with gears between the wall in the centre and the rear cover 1 , and

185 in that case the gear housing 9 can be integrated as one part with the rear cover 1 , and of a thin material (e.g. one of the options is by deep drawing the sheet metal). The external shape of the device can be round, elliptic or of different and therefore appropriate shapes. Device can be used wherever there is a need; to generate vacuum, to compress compressible fluds, for pumping the fluids, generate pressure and as a driving i.e. driven

.90 hydraulic pneumatic machine; device can be a part of any type of engine (generator) or system; it can be directly driven by any type of motor; as and it can be fitted therein or connected withthe motors (engines) by means of an indirect connection such are cardanshafts, electromagentic lamellas, pulleys and in all other appropriate modes. Driving shafts on the device can have outlet through the cover of the piston housing, and through

95 the both covers. Inlet-outlet connections 20 can be on the piston housing 11 or on the rear cover 1 of that housing, it can be seen in figures 92 to 100, according to the eleventh embodiment, and as combined where the inlet is in the housing and the outlet in the cover and vice versa. In the cases of using the device for higher pressures, it has to have made channels - recessed parts 25 (according to the second embodiment from Figures 10 -19) to

00 unload i.e. protect the gaskets and bearings from high-pressure fluids. The length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing the contact or sealing surfaces between the elements of the assembly can be achieved in all existing and thereto suitable ways. This device can be with (working) protrusions of any of the mentioned shapes; A ; B ; C ; D ; E or F and according to

05 these the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, represented in Figures 66 to 73, represents a device with a pair of gears and two pairs of double-sided working auxiliary rotary pistons C-G (double-sided working auxiliary rotary piston C-G consists of a body 6 with a hole for the shaft, two (working) protrusions C and two (auxiliary) recessed parts G) and it can be best 10 used as a turbine, a compressor, a pump, a vacuum pump, a motor... it consists of the piston housings 11 and 11a with inlet-outlet connections 20, then the gear housing 9 of the separating wall 7, front cover 12 with a hole for shaft 4, and the rear cover 1 , that are coupled by bolts 16 that go through the appropriate holes 16x and are screwed in the body of the rear cover 1 , then the bolts 16a that go through the appropriate holes 16y are screwed

⁾15 in the body of the separating wall 7, in the piston housings 11 and 11a is set a pair of working - auxiliary rotary pistons C-G, and that firmly connected to the gears 10, in the gear housing 9 are over the shaft 5, where the piston housings 11 and 11a and the gear housing 9 are separated by the separating wall 7 whereon are holes for shafts 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the shaft 4 carried by the gear 10a is

UO embedded in the separating wall 7 and the front cover 12, auxiliary guides 22 are grooved into the appropriate holes on the elements and are used to direct precise alignment when connecting these, the gaskets 8 in the separating wall 7 front cover 12 and the rear cover 1 prevent fluid to flow from one housing into the other and outside the device, and also prevent the contact of the working fluid and the bearings 2, bolts 15 close the holes 15a in the rear

>25 cover 12 and the gear housing 9. The externall shape of the piston housings can be; round, elliptic or of different and of thereto more suitable shapes. Device can be used wherever there is a need to generate a vacuum, to compress compressible fluids, to achieve pressure and as a driving i.e. driven hydraulic pneumatic machine; device can be a part of any type of engine (generator) or system; it can be directly driven by any type of motor; as it can be

>30 fitted therein or connected withthe motors (generators) by means of an indirect connection and as such are: cardanshafts, electromagentic lamellas, pulleys and in all other known and thereto appropriate modes. Inlet-outlet connections 20 can be in the piston housing or in the rear cover 1 of that housing or be combined where the inlet is in the housing and the outlet in the cover and vice versa. In the examples of using the device for higher pressures, it has to

>35 have channels 25 (according to the second embodiment, from Figures 10-19) to unload i.e. protect the gaskets and bearings from high-pressure fluids. Length (thickness) of the pistons and the length of the housings can be increased or decreased (proportionally). Sealing the leaning surfaces between the elements of the assembly can be achieved in all the known and thereto appropriate modes. This device can be with (working) protrusions of any of the

>40 mentioned shapes ; A ; B ; C ; D ; E or F and depending on these the choice of the auxiliary shaped recesses G or H is made.

Device according to the invention represented in Figures 74 to 82, represents a device with a pair of gears, one double-sided working rotary piston A (that consists of a body 6 integrated as one part with the shaft 4 and two (working) protrusions A) and one double- >45 sided auxiliary rotary piston G (that consists of the body 6 integrated as one part with the shaft 5 and two (auxiliary) recesses G) and it can be best used with inlet outlet recesses 20a, the gear housing 9 achieved integrally as one part with the front cover 12, the separating wall 7 and the rear cover 1 with inlet-outlet connections 20, being coupled to each other by bolts 16 that go through the appropriate holes 16x and are screwed in the gear

>50 housing 9, and in the piston housing 11 is set one double-sided working rotary piston A and one double-sided auxiliary rotary piston G that are firmly connected to the gears 10 in the gear housing 9 over the shafts 4 and 5, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 wherein are holes for shafts 4 and 5 embedded by bearings 2, on the front cover 12 and on the rear cover 1 are holes for the shafts 4, bolts 16a

»55 go through the holes on the small covers 23 and are screwed into the body of the rear cover 1 , and in the separating wall 7 ring washers 3 support the gaskets 8 leaning against the circlips 24 , in the rear cover 1 ring washers 3 support the gaskets 8 resting against the bearings 2, keys 29 are in the recesses of the shafts 4 and 5, the sealing rings 28 are in the recesses 28a in the housings 11 and 9, auxiliary guides 22 are grooved in the appropriate

•60 holes on the elements and are used to direct precise alignment when connecting, bolts 15 close the holes 15a for oil in the front cover 12 wheron are also threaded openings for bolts that secure the device. The external shape of the device can be of different shapes, elliptic ... etc. device can be used wherever needed, to generate vacuum, to compress compressible fluids, to generate pressure, it can be a part of any type of engine or system, it

•65 can be directly driven by any type of motor, and it can be fitted therein or be connected with the motors by means of an indirect connection in the modes such as cardanshafts, electromagnetic lamellas, pulleys and all other known and thereto appropriate ways. Inlet- outlet connections 20 can be in the piston housing 11 or in the cover 1 of that housing or combined; therewith inlet is in the piston housing 11 and the outlet is in the cover 1 and vice

70 versa. In the cases of using this device for higher pressures it has to have channels made (channels 25 according to the second embodiment from figures 10-19) to unload sealing elements and bearing from high-pressure fluids. As required length (thickness) of the pistons and the length of the housings can be proportionally increased or decreased. When, the device is e.g. in use for higher pressures then its pistons and their housings would be

75 shorter. Sealing of the contact surfaces between the elements of the assembly can be achieved in all existing and thereto suitable ways. This device can be with (working) protrusions of any of the mentioned shape; A; B; C; D; E or F and according to which the choice of the (auxiliary) shaped recesses G or H₁ is made.

Device according to the invention, as represented in Figures 83 to 91 , represents a 80 device with a pair of gears and a pair of double-sided working-auxiliary rotary pistons A-G (double-sided working-auxiliary rotary piston A-G consists of the body 6 integrated as one part with the shaft 4, two (working) protrusions A and two (auxiliary) recesses G) and can be best used as a turbine, a compressor, a pump, a vacuum pump, a motor..., it consists of the piston housing 11 with inlet - outlet recesses 20a, integrated as one part with the separating »85 wall 7, then the gear housing 9 integrated as one part with the front cover 12 with a hole for shaft 4 and rear cover 1 with inlet - outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes 16x and are screwed in the body of piston housing 11 wherein set is one pair of working auxiliary rotary pistons A-G firmly connected to the gears 10 in the gear housing 9 over the shafts 4 and 5, in the separating wall 7 are holes for

»90 shafts 4 and 5 embedded in the rear cover 1 and the separating wall 7 by bearings 2, the gaskets 8 in the separating wall 7, the rear cover 1 and the front cover 12 prevent fluid to flow from one housing into the other and outside the device i.e. these protect from the contact between bearings and the working fluid, bolts 16b go through the appropriate holes 16c in the rear cover 1 and are screwed in the body of the piston housing 11 , the bolts 16a

•95 go through the appropriate holes 16z in the gear housing 9 and are screwed in the body of the separating wall 7, the seailing ring 28 is in the recess 28a on the piston housing 11 , the keys 29 are in the appropriate recesses on the shafts 4 and 5, bolts 15 close the oil inlets in the gear housing 9, threaded openings 33 are for bolts that secure the device. Device can be used wherever it is required, to achieve vacuum, to compress compressible fluids, pump the

00 fluids, to achieve the pressure and as a driving i.e. driven hydraulic and pneumatic machine, device can be a part of any type of engines (generators ) or any systems, it can be directly driven by any type of motors it can be fitted therein or be connected with engine (generator) by means of an indirect connection in the modes such as, cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate modes. Device can be

05 driven even manually (e.g. pumps for decanting wine, water, fuel and etc.). Driving shafts on the device can have outlet and through the cover 1 of the piston housing 11. Inlet -outlet connections 20 can be in the piston housing 11 or in the rear cover 1 of that housing and combined where the inlet is in the housing and the outlet is in the cover and vice versa. Length (thickness) of the pistons and the length of the housing can be increased or

10 decreased (proportionally). Sealing the leaning surfaces between the elements of the assembly can be achieved in all known and thereto suitable ways. This device can be with (workng) protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, as represented in Figures 92 to 100, represents the

15 device with a pair of gears and a pair of double-sided working auxiliry rotary pistons F-H

(double-sided working auxiliary rotary piston F -H consists of the body 6 countersunk from one and annularly reinforced from the other side, two (working) protrusions F shaped as a truncated semicylinder indented once per both sides and two (auxiliry) recesses H) and is best used as a turbine, a pump or a motor and for very high pressures and it consists of the

20 piston housing 11 integrated as one part with the rear cover 1 an inlet-outlet connections 20, then the gear housing 9, the separating wall 7 and the front cover 12 achieved circullarly with an eccentric semiciruclar protrusion, connected to each other by bolts 16 that go through the appropriate holes 16x and are screwed in the body of the front cover 12, in the piston housing 11 is set a pair of working-auxiliary rotary pisotns F-H that are over the shafts 4 and

)25 5 firmly connected with gears 10 set in the gear housing 9, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the front cover 12 with a hole for the shaft 4 and the separating wall 7 by bearngs 2, auxiliary guides 22 are grooved in the appropriate holes on the elements and are used to direct proper alignment when connecting these, the gaskets 8 in the separating wall

)30 7 and the front cover 12 prevent fluid to flow from one housing to the other and outside the device, ring washer 3 is between the bearing 2 and the gasket 8 in the front cover 12, holes 33 on the assembly are intended for the bolts that secure the device, holes 15 with the threads are used for filling the oil and are closed by screwing the appropriate bolts therein. The external shape of the device can be round, elliptic or of some other and thereto adjusted

⁾35 shape. Device can be used wherever needed, to pump the fluid, to generate the pressure and as a driving i.e. driven hydraulic pneumatic machine; device can be a part of any type of engine (generator) or system; it can be directly driven by any type of motor and it can be fitted therein or be connected with motors (generators) by means of an indirect connection such are, cardanshafts, electromagnetic lamellas, pulleys and in all other existing and

I40 thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be incresed or decresed (proportionally). Sealing the contact surfaces between the elements of the assembly can be achievd in all known and thereto appropriate ways. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and, depending on it the choice of the (auxiliary) shaped recesses G or H, is made.

»45 Device according to the invention, as represented in Figures 101 to 107, represents a device with three gears, two double-sided working rotary pistons A (double-sided working rotary piston A consists of the body 6 countersunk from both sides, a hole for the shaft in the centre and two (working) protrusions A) and one double-sided auxiliary rotary piston G (double-side auxiliary rotary piston G consists of the body 6 with a hole in the centre and two i50 auxiliary recessed parts G) and is best used as a compressor, a vacuum pump, the pump consists of the piston housing 11 , then the gear housing 9, the separating wall 7, the frnt cover 12 and the rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes and are screwed in the body of the rear cover 1 , in the piston housing 11 are set two double-sided working rotary pistons A and one

•55 double-sided auxiliary rotary piston G that are firmly connected to the gears 10 in the gear housing 9 over the shafts 5 and 4, where the piston housings 11 and the gear housings 9 are each from other separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating wall 7 and the front cover prevent the fluid to flow from one housing into the

•60 other and outside the device. The external shape of the device can be elliptic or of different thereto appropriate shapes. Device can be used wherever needed, to achieve vacuum, to compress compressible fluids or to pump the fluids; device can be a part of any type of the engine or system; it can be directly driven by any type of motor; and also it can be fitted therein or be connected withthe motors by means of an indirect connection such are,

'65 cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing the resting surfaces between the elements of the assembly can be achieved in all existing and thereto appropriate modes. This device can be with (working) protrusions of any of the mentioned shapes; A; B; C; D; E or F and

70 according to these the choice of the (auxiliary) shaped recesses G or H, is made.

Device according to the invention, as represented in Figures 108 to 115, represents a device with four gears, two double-sided working rotary pistons A (double-sided working rotary piston A consists of the body 6 countersunk from both sides and with a hole for the shaft in the middle and two (working) protrusions A), one double-sided auxiliary rotary piston

75 G (double-sided auxiliary rotary piston G consists of the body 6 countersunk from both sides and with a hole in the centre, and two (auxiliary) recesses G) and can be best used as a vacuum pump, a compressor, a turbine, a motor, a pump or as a driving and driven hydraulic and penumatic machine, it consists of the piston housing 11 , then the gear housing 9, the separating wall 7, the front cover 12 with the hole for the shaft 4 and the rear cover 1 with

80 the inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes 16x and are screwed in the body of the rear cover 1 , in the piston housing 11 are set three double-sided working auxiliary rotary pistons A arranged from each other at the distance of 120 degrees while in the centre of the housing there is one double-sided auxiliary rotary piston G that are over the shafts 5 and 4 firmly connected to the gears 10 set

85 in the gear housing 9, where the piston housings 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating wall 7 and the front cover prevent the fluid to flow from one housing into the other and outside the device, as well. The external shape of the device can be round or of different thereto appropriate

90 shapes. Device can be used wherever there is a need to pump the fluid, to generate pressure or vacuum and as a driving i.e. driven hydraulic - pneumatic machine; device can be a part of any type of engine (generator) or system, it can be directly driven by any type of motor; as it can be fitted therein or be connected withthe motors by means of an indirect connection , and such are cardanshafts, electromagnetic lamellas, pulleys and in all other

)95 known and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing of the contact surfaces between the elements of the assembly can be achieved in all appropriate modes. This device can be with (working) protrusions, of any of the mentioned shapes; A ; B ; C ; D ; E or F and according to these shapes the choice of the (auxiliary) shaped recesses G or H, is

00 made.

Device according to the invention, represented in the Figures 116 to 123, represents a five gear device, four double-sided working rotary pistons A (double sided working rotary piston A consists of a body 6 countersunk from both sides with a hole in the centre and two (working) protrusions A ), one double-sided auxiliary rotary piston G (double-sided auxiliary

05 rotary piston G consists of a body 6 countersunk from boh sides with a hole for the shaft in the centre and two auxiliary piston recesses G) and can be best used as a vacuum pump, a compressor, a turbine, a motor, a pump and as either driving or driven hydraulic - pneumatic machine, it consists of the piston housing 11 , the gear housing 9, the separating wall 7, front cover 12 with a hole for the shaft 4 and the rear cover 1 with inlet-outlet

10 connections 20, each to other connected by bolts 16 that go through the appropriate holes 16x and are screwed in the body of the rear cover 1 , and in the piston housing 11 are set four double-sided working rotary pistons A arranged from each other at 90 DEG where in the centre of the device (housing) there is one double-sided auxiliary rotary piston G that are over the shafts 5 and 4 firmly connected to the gears 10 in the gear housing 9, where the

15 piston housings 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating cover 7 and the front cover 12 prevent the fluid to flow from one housing into the other and outside the housing. The external shape of the device can be square, round or of different appropriate shape. Device can be used wherever

20 there is a need for pumping fluid, creating pressure of vacuum and as a driving i.e. driven hydraulic - pneumatic machine; device can be a part of any type of engine (generator) or system, it can be directly driven by any type of motor; as well as it can be fitted therein or be connected withthe motors (generators) by means of an indirect connection and such are cardanshafts, electromagnetic lamellas, pulleys and in all other known and thereto

25 appropriate ways. Length (thickness) of the pistons and the length of the housings can be increased or decreased (proportionally). Sealing of the contact surfaces between the elements of the assembly can be achieved in all known and thereto appropriate modes. This device can be with working protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of (auxiliary) shaped recesses G or H, is made.

Device according to the invention, represented in Figures 124 to 128, represents a device with six gears 10 and one gear 10a, six double-sided working rotary pistons A (double sided working rotary piston A consists of the body 6 with a hole in the centre and two (working) protrusions A) and one hexagonal auxiliary rotary piston G (hexagonal auxiliary rotary piston G consists of the body 6 which has a hole in the centre and six (auxiliary) shaped recesses G arranged each from other at the angles of 60 degrees) and can be best used as a vacuum pump, compressor, pump, consists of the piston housing 11 , gear housing 9, separating wall 7 the front cover 12 with a hole for the shaft 4 and the rear cover 1 with inlet-outlet connections 20, connected to each other by bolts 16 that go through the appropriate holes and are screwed in the body of the rear housing 1 , in the piston housing 11 are set six double-sided working rotary pistons A arranged each from other at 60 degrees while in the centre of the housing 11 there is one hexagonal auxiliary rotary piston G that are firmly connected to the gears 10 and 10a in the gear housing 9 over the shafts 5 and 4, where the piston housings 11 and the gear housings 9 are separated from each other by the separating wall 7 whereon are holes for shafts 4 and 5 embedded in the rear cover 1 and the front cover 12 by bearings 2, the gaskets 8 in the separating wall 7 and in the front cover prevent fluid to flow from one housing into the other and outside the device, as well. The external shape of the device can be round or of different thereto appropriate shape. Device cah be used wherever there is a need to pump the fluid, to achieve pressure or vacuum; device can be directly driven by any type of the motors it can be fitted therein or be connected withthe motors by means of indirect connection and such are cardanshafts, electromagnetic lamellas, pulleys and in all other existing and thereto appropriate modes. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally). Sealing of the contact surfaces between the elements of the assembly can be done in all known and therefore appropriate modes. This device can have (working) protrusions, of any of the mentioned shapes; A; B; C; D; E or F and according to these the choice of the auxiliary shaped recesses G or H is made.

Device according to the invention, represented in figures 129 to 137 represents a device with a pair of gears, one single-sided working rotary piston A (single-sided working rotary piston A consists of a body 6 with a hole for the shaft in the centre and one (working) protrusion A) and one single-sided auxiliary rotary piston G (single-sided auxiliary rotary piston G consists of the body 6 with a hole for the shaft in the centre and one (auxiliary) protrusion G) and is best used with internal combustion engines, it consists from the piston housing 11 with inlet-outlet connections 20, then the gear housing 9, the separating wall 7, the front cover 12 and the rear cover 1 , that are each to other coupled by bolts 16 that go through the appropriate holes 16x and are screwed in the body of the rear cover 1 , and the piston housing 11 there is set one-sided working rotary piston A and one single-sided auxiliary rotary piston G that over the shafts 4 and 5 are firmly connected to the gears 10 in the gear housing 9, where the piston housing 11 and the gear housing 9 are separated by the separating wall 7 whereon are holes for the shafts 4 and 5 embedded in the front cover 12 and the rear cover 1 by bearings 2, the auxiliary guides 22 are grooved in the appropriate holes of the elements and are used to direct precise alignment when connecting these, the gaskets 8 in the separating wall 7 and the front cover 12 prevent the fluid to flow from one housing into the other and outside the device, bolts 15 close the inlets intended for filling the oil, bolts 18 with 17 are used to secure the device. The external shape of the device can be round, elliptic... etc. device can be used a part of a motor i.e. wherever there is a need to use it. Inlet - outlet connections 20 can be in the piston housing 11 or at the rear cover 1 of that housing or combined where the inlet is in the housing and outlet in the cover and vice versa. Length (thickness) of the pistons and the length of the housing can be increased or decreased (proportionally), all the single-sided pistons can be balanced in all the known and thereto appropriate modes, to prevent them to bring about vibrations in the working process. Sealing of the contact surfaces between the elements of the assembly can be achieved in all existing and thereto suitable modes. This device can be with working protrusions of any of the mentioned shapes; A; B; C; D; E or F and according to which the choice of the (auxiliary) shaped recesses G or H, is made. This type of the device can be used as a compressor, a pump, a vacuum apparathus, and therein can be, instead of one working and one auxiliary; double-sided working and double-sided auxiliary, or three-sided working and thee-sided auxiliary, or four-sided working and four-sided auxiliary rotary pistons.

Zivoslav Milovanovic, Applicant

Claims

C L A I M S

1.- Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines,

I95 consists of a piston housing 11 with inlet-outlet connections 20, a gear housing 9, a separating wall 7, a front cover 12 with a hole for shaft and a rear cover 1 being connected to each other by bolts 16 that go through holes 16x and are screwed in the body of the rear cover 1 , is characterized in, that in the piston housing (11) there is set one pair of double- sided working-auxiliary rotary pistons (A-G) having a body (6) with two working protrusions

!00 (A) and two auxiliary recesses (G), arranged at the angles of 90 DEG and firmly connected with gears (10) in the gear housing (9) over shafts (4,5), where the piston housing (11) and the gear housing (9) are separated by the separating wall (7) whereon are holes for the shafts (4,5) embedded in the front cover (12) and in the separating wall (7) wherein are gaskets (8) and the auxiliary guides (22), to direct precise alignment of the elements of the

!05 assembly when connecting, being grooved in the holes on covers (12,1), in the separating wall (7) and housings (9,11). Fig. 1-9

2.- Device according to Claim 1 and the second embodiment, is characterized in, that the gear housing (9) is achieved in one part with the front cover (12) with the hole for the shaft (4), a piston housing (11) achieved in one part with a separating wall (7) and the piston

!10 housing (11a) integrated as one part with the rear cover (1) with a hole for the shaft (4), where the housing (11) and the housing (11a) are separated from each other by separating wall (7a) with holes for shafts (4,5) of different lenghts (L), that are embedded by bearings (2) in the separating wall (7) and the rear cover (1), where each pair of double-sided working-auxiliary rotary pistons (E-G) of different lengths set in the housings (11 ,11a) firmly

;15 connected with gears (10) in the gear housing (9) over the shafts (4,5), that in the front cover (12), and the rear cover (1) and separating walls (7,7a) are gaskets (8) and auxiliary guides (22), that a double-sided working- auxiliary rotary piston (E-G) that has a body (6) with two working protrusions (E) on the tops these are indented four times per both sides, and two auxiliary recesses (G), each to other arranged in alteration at the angles of 90 DEG, and that

20 the channels (25) with protrusions toward an inlet (20) are positioned in separating walls (7,7a) and the rear cover (1). Fig. 10-19

3.- Device according to Claim 1 and the second embodiment, is characterized in, that the gear housing (9) is achieved in one part with the front cover (12), the piston housing (11) is achieved in one part with a separating wall (7) and the piston housing (11a) is achieved in !25 one part with the rear cover (1), where the housing (11) and the housing (11a) are separated each from other by a separating wall (7a) with holes for two shafts (5) being embedded by bearings (2) in the separating wall (7) and the rear cover (1), where each pair of double- sided working-auxiliary rotary pistons (E-G) of different lengths (L) are set in the housings (11 ,11a) firmly connected over two shafts (5) with gears (10), that in the front cover (12), 30 and the rear cover (1) and separating walls (7,7a) are set gaskets (8) and auxiliary guides (22), that a double-sided working-auxiliary rotary piston (E-G) has a body (6) with two working protrusions (E) on the tops indented four times per both sides, and two auxiliary recesses (G), each from other arranged in alteration at the angles of 90 DEG, and that the channels (25), with protrusions toward the inlet (20), are positioned in separating walls (7,7a) 35 and the rear cover (1). Fig. 20-29

4.- Device according to Claim 1 and the fourth embodiment, is characterized in, that it has a cylindrical external shape with a pair of gears (10) and two pairs of double-sided working-auxiliary rotary pistons (A-G) of different lengths (L) of which one pair has bodies (6) achieved in one part with the shaft and the other pair of the bodies (6) with a hole for shaft,

40 each having two working protrusions (A) and two auxiliary recesses (G), that the piston housings (11 , 11a) are achieved with inlet outlet recesses (20c, 20a), rear covers (1 ,1a) with inlet-outlet connections (20) and small covers (23) so as to cover bearings (2), gear housing (9) is achieved in one part with the separating wall (7), and the separating wall (7a) that separates piston housings (11 ,11a) connected to each other by bolts (16,16b) to the

45 housing (11a), that per each of the housings (11 , 11 a) is set one pair of double-sided working -auxiliary rotary pistons (A-G) firmly connected with gears (10), over shafts (5,5a), where in the separating walls (7,7a) and covers (1 ,1a) are holes for shafts (5,5a) embedded in the separating wall (7) and the covers (1 ,1a) by bearings (2), that in the covers (1 ,1a) and separating walls (7,7a) are gaskets (8) and auxiliary guides (22), and bolts (15) are screwed

50 into holes (15a), and bolts (16d) go through thereto matching holes (16dx) and on the cover (1) and the piston housing (11) are screwed in the separating wall (7), bolts (16c) that go through thereto matching holes (16cx) on the cover (1a) and are screwed in the body of piston housing (11a), bolts (16a) go through the holes (16ax) on small covers (23) and are screwed in covers (1 ,1a), while ring washers (3) in the separating wall (7a) support the

55 gaskets (8) lean therewith against the circlips (24), and ring washers (3) in the covers (1 , 1a) support the gaskets (8) rested on the bearings (2), keys (29) are in the recesses on the shafts (5, 5a), sealing rings (28) are set in the recesses (28a). Fig. 30-38

5. -Device according to Claim 1 and the fifth embodiment, is characterized in, that it has an oval external shape with ribbed reinforcement (14) with a pair of gears (10) and a pair

Ϊ60 of double-sided working-auxiliary rotary pistons (C-G) which has a body (6) with two working protrusions (C) and two auxiliary recesses (G), arranged in alteration at the angles of 90 DEG, that the working protrusions (C) on the tops are indented once per both sides, a gear housing (9), the separating wall (7), the front cover (12) and the rear cover (1), are connected each to other by bolts (16,16a) to the piston housing (11) wherein set is one pair

.65 of double-sided working-auxiliary rotary pistons (C-G), and that are over the shafts (4,5) firmly connected to gears (10), where the piston housing (11) and the gear housings (9) are separated with the separating wall (7) with holes for shafts (4,5) embedded by bearings (2) in the front cover (12) and the rear cover (1), bolts (16b) go through holes (16bx) on small covers (23) and are screwed in the rear cover (1), the gaskets (8) are in the separating wall

HO (7), the rear cover (1) and the front cover (12), circlips (24) support the gaskets (8) in the separating wall (7) and the rear cover (1), while the bolts (15) are screwed in holes (15a). Fig. 39- 47

6. -Device according to Claim 1 and the sixth embodiment, is characterized in, that it has a cylindrical external shape with a pair of gears (10) and a pair of double-sided working-

I75 auxiliary rotary pistons (A-G) which has a body (6) integrated as one part with a shaft, two working protrusions (A) and two auxiliary recesses (G) arranged in alteration at the angles of 90 DEG, that the device has a piston housing (11) with inlet outlet recesses (20a), a gear housing (9) integrated as one part with the front cover (12), the separating wall (7) and the rear wall (1) with the inlet-outlet connections (20), connected to each other by bolts (16) to

180 the body of the gear housing (9), that in the piston housing (11) there is set one pair of double-sided working-auxiliary rotary pistons (A-G) being firmly connected with the gears (10) over shafts (4,5), where the piston housing (11) and the gear housing (9) are separated by a separating wall (7) whereon are set holes for shafts (4,5) embedded in bearings (2) and the front cover (12) and the rear cover (1), bolts (16a) go through the holes on the small

!85 covers (23) and are screwed in the rear cover (1), bolts (16b) go through the holes (16bx) on the rear cover (1) and the piston housing (11) and are screwed in the separating wall (7) wherein ring washers (3) support the sealing elements (8) leaning against the cicrclips (24), in the rear cover (1) ring washers (3) resting on the bearings (2) support the gaskets (8) and the keys (29) are in the recesses on the shafts (4,5), the sealing rings (28) are set in

:90 recesses (28a). Fig. 48-56

7. -Device according to Claim 1 and the seventh embodiment, is characterized in, that in the piston housing (11) is set a pair of double-sided working auxiliary rotary pistons (A-G) that are over the shafts (4,5) firmly connected to gears (10), where the piston housing (11) and the gear housing (9) are separated by a separating wall (7) whereon are holes for .95 shafts (4,5) embedded by bearings (2) in the separating wall (7), and in the front cover (12) achieved circularly with eccentric semicircular protrusion and the separating wall (7) there are gaskets (8). Fig. 57-65

8.- Device according to Claim 1 and the eighth embodiment, is characterized in, that with four gears (10) and one driving gear (10a) on the shaft (4) embedded in the separating

500 wall (7) and the front cover (12) by bearings (2), two pairs of double-sided working-auxiliary rotary pistons (C G) double-sided working-auxiliary rotary piston (C-G) having the body (6) with a hole for the shaft (5), two working shaped protrusions (C) on the tops indented once per both sides and two auxiliary recesses (G), that inside the housings (11 ,11a) of the pistons is set one pair of double-sided working-auxiliary rotary pistons (C-G) that are over

S05 four shafts (5) firmly connected with gears (10), where the piston housings (11 ,11a) and the gear housing (9) are separated by the separating wall (7) whereon are holes for the shaft (5) embedded in the rear cover (1) and the front cover (12) by bearings (2), auxiliary guides (22), to direct precise alignment of the elements of the assembly when connecting, are grooved in appropriate holes on the elements, the gaskets (8) are in the separating wall (7),

HO the front cover (12) and the rear cover (1), while the bolts (15) are screwed into the holes (15a) on the front cover (12) and the gear housing (9). Fig. 66-73

9.- Device according to Claim 1 and the ningth embodiment, is characterized in, that with a pair of gears (10), one double-sided working rotary piston (A) which has a body (6) integrated as one part with the shaft and two working protrusions (A) each from other

!15 arranged at the angle of 180 DEG, one double-sided auxiliary rotary piston (G) that has a body (6) integrated as one part with the shaft and two auxiliary recesses (G) each from other arranged at the angle of 180 DEG, the piston housing (11) with inlet outlet recesses (20a), the gear housing (9) integrated as one part with the front cover (12) with the hole for shaft (4), the separating wall (7) and the rear cover (1), in the piston housing (11) is set one

>20 double-sided working rotary piston (A) and one double-sided auxiliary rotary piston (G) being firmly connected to the gears (10) over the shafts (4,5), where the piston housing (11) and the gear housing (9) are separated by the separating wall (7) with holes for shafts (4,5) embedded in the front cover (12) and the rear cover (1) by bearings (2), on the front cover (12) and the rear cover (1) are holes for the shaft (4), the bolts (16a) go through the holes on

»25 the small covers (23) and are screwed into the rear cover (1), in the separating wall (7) ring washers (3) support the gaskets (8) resting against the circlips (24), in the rear cover (1) ring washers (3) support the gaskets (8) resting against the bearings (2), keys (29) are in the recesses on the shafts (4,5) and the sealing rings (28) are in the recesses (28a) on the housings (11 ,9), while the auxiliary guides (22) are intended to direct precise alignment of the elements of the assembly when connecting, while the bolts (15) are screwed in inlets (15a) for oil in the front cover (12) wherein are threaded openings (33). Fig. 74-82

10. -Device according to Claim 1 and the tenth embodiment is, characterized in, that with a pair of gears (10) and a pair of double-sided working-auxiliary rotary pistons (A-G), double-sided working-auxiliary rotary piston (A-G) has the body (6) integrated as one part with the shaft (4), two working protrusions (A) and two auxiliary recesses (G), the piston housing (11) with inlet outlet recesses (20a), achieved in one part with the separating wall (7), the gear housing (9) integrated as one part with the front cover (12) and the rear cover (1), that in the piston housing (11) is set one pair of working-auxiliary rotary pistons (A-G) over the shafts (4,5) firmly connected with the gears (10), on the separating wall (7) are holes for shafts (4,5) embedded in the rear cover (1) and the separating wall (7) by bearings (2), the gaskets (8) are in the separating wall (7), the rear cover (1) and the front cover (12) with a hole for the shaft (4), bolts (16b) go through the holes or openings (16c) on the rear cover (1) and are screwed in the body of the housing (11), bolts (16a) go through the holes (16z) on the housing (9) and are screwed in the separating wall (7), the sealing ring (28) is in the recess (28a) on the housing (11), keys (29) are in the recesses on the shafts (4,5), while the bolts (15) are screwed into the inlets for oil on the housing (9), threaded openings (16y) are intended for bolts that firm installation connections for the device, while threaded openings (33) for bolts are intended to secure the device. Fig. 83- 91

11.-Device according to Claim 1 and the eleventh embodiment, is characterized in, that with a pair of gears (10) and a pair of double-sided working-auxiliary rotary pistons (F-H) that has the body (6) countersunk from one and it is annularly reinforced from other side, two working protrusions (F) shaped as a truncated semicirle indented once per each side and two auxiliary recesses (H), each from other arranged in ateration at the angles of 90 DEG, the piston housing (11) achieved in one part with the rear cover (1) and inlet-outlet connections (20), then the gear housing (9), the separating wall (7) and the front cover (12) achieved circularly with the hole for the shaft (4) and the semicircular protrusion on one side, that inside the piston housing (11) is set one pair of working-auxiliary rotary pistons (F-H) over the shafts (4,5) firmly connected with gears (10), where the piston housing (11) and the gear housing (9) are separated from each other by the separating wall (7) holes for shafts (4,5) embedded in the front cover (12) and the separating wall (7) by bearings (2), auxiliary guides (22) to direct precise alignment of the elements of the device when connecting and the gaskets (8) are in the separating wall (7) and the front cover (12), a ring washer (3) is set between the bearings (2) and the gasket (8) in the front cover (12), while the bolts (15) are screwed into the inlets for oil, and the threaded openings (33) for bolts to secure the device. 565 Fig. 92-100

12. -Device according to Claim 1 and the twelfth embodiment, is characterized in, that it has three gears (10), two double-sided working rotary pistons (A) having a body (6) countersunk from both sides, with the central hole for shafts (5) and two working protrusions (A) arranged each from other at the angle of 180 DEG, one double-sided auxiliary rotary

170 piston (G) that has a body (6) with the central hole and two auxiliary recesses (G) arranged each from other at the angle of 180 DEG, that inside the piston housing (11) are set two double-sided working rotary pistons (A) and one double-sided auxiliary rotary piston (G) over the shafts (5,4) firmly connected with gears (10), where the piston housing (11) and the gear housing (9) are separated each from other by the separating wall (7), with holes for shafts

»75 (4,5) embedded by bearings (2) in the rear cover (1) with inlet-outlet connections (20) and the front cover (12), while the gaskets (8) are in the separating wall (7) and the front cover (12) with the hole for the shaft (4). Fig. 101-107

13. -Device according to Claim 1 and the thirteenth embodiment, is characterized in, that it has four gears (10), three double-sided working rotary pistons (A) having a body (6)

•80 countersunk from both sides, with the central hole for shafts (5) and two working protrusions (A) arranged each from other at the angle of 180 DEG, one double-sided auxiliary rotary piston (G) having the body (6) countersunk from both sides, with a central hole for the shaft (4) and two auxiliary recesses (G) of semicircular shape arranged each from other at the angle of 180 DEG, that per one piston housing (11) are set three double-sided working

85 rotary pistons (A) arranged each from other at 120 DEG, while in the centre of the housing (11) there is also one double-sided auxiliary rotary piston (G) over the shafts (5,4) firmly connected with gears (10), where the piston housing (11) and the gear housing (9) are separated each from other by the separating wall (7), whereon are the holes for shafts (4,5) embedded in bearings (2) in the rear cover (1) with inlet-outlet connections (20) and the front

90 cover (12), while the gaskets (8) are in the separating wall (7) and the front cover (12) with the hole for the shaft (4). Fig. 108- 115

14.-Device according to Claim 1 and the fourteenth embodiment, is characterized with, four gears (10), two double-sided working rotary pistons (A) having a body (6) countersunk from both sides, with the central hole for shafts (5) and two working protrusions

95 (A) arranged each from other at the angle of 180 DEG, one double-sided auxiliary rotary piston (G) that has a body (6) countersunk from both sides, a hole for the shaft (4) and two auxiliary recesses (G) each to other arranged at the angle of 180 DEG, that inside the housings (11) are set four double-sided working rotary pistons (A) set in the arrangement each from other at 90 DEG and one double-sided auxiliary rotary piston (G) in the centre, K)O and that are firmly connected with gears (10) over the shafts (5,4), where the piston housing (11) and the gear housing (9) are separated each from other by the separating wall (7), with holes for shafts (4,5) embedded in bearings (2) in the rear cover (1) with inlet-outlet connections (20) and the front cover (12), with the hole for shaft (4), while the gaskets (8) are in the separating wall (7) and the front cover (12). Fig. 116- 123

05 15.-Device according to Claim 1 and the fifteenth embodiment, is characterized with, six gears (10) and one central gear (10a), six double-sided working rotary pistons (A) having the body (6) countersunk from both sides, with the central hole for shafts (5) and two working protrusions (A) arranged each from other at the angle of 180 DEG, one hexagonal auxiliary rotary piston (G) that has a body (6) countersunk from both sides, the central hole for the

10 shaft (4) and six auxiliary recesses (G). of semicircular shape arranged each from other at the angle of 60 DEG, that in the piston housing (11) are set six double-sided working rotary pistons (A) arranged each from other at 60 DEG and one hexagonal auxiliary rotary piston (G) in the center, and these are over the shafts (5,4) firmly connected with gears (10,10a), and where the piston housings (11) and the gear housing (9) are separated each from other

15 by the separating wall with the holes for shafts (4,5) embedded in the bearings (2) and in the rear cover (1) with inlet outlet connections (20) and the front cover (12), while the gaskets (8) in the separating wall (7) and the front cover (12) with the hole for shaft (4). Fig. 124- 128

16. -Device according to Claim 1 and the sixteenth embodiment, is characterized with, a pair of gears (10), one single-sided working rotary piston (A) which has a body (6)

20 with the central hole for the shaft (4) and one working protrusion (A), one single-sided auxiliary rotary piston (G) which has a body (6) with the central hole for the shaft (5) and one auxiliary recess (G), that in the piston housing (11) are set one single-sided working rotary piston (A) and one single-sided auxiliary rotary piston (G) being firmly connected over the shafts (4,5) to the gears (10), where the piston housing (11) with inlet outlet connections

25 (20) and the gear housing (9) are separated each from other by the separating wall (7) having the holes for shafts (4,5) embedded in the bearings (2) in the front cover (12) and the rear cover (1) while, the bolts (18) with nuts (17) are for securing device. Fig.129-137

17. -Device according to Claims 1 ,4,6,7,10, is characterized in, that the circular cross cut of the body (6) is achieved by radius (R), that along the longer axis are achieved

30 two symmetrical semicircular working protrusions (A) having radius (r) and height (v), and vertically to the shorter axis two symmetrical semicircular auxiliary recesses (G) having radius (r,) and height (V₁) are arranged each from other at the angles of 90 DEG.

18. -Device according to Claims 5 and δ, is characterized in, that the circular cross section of the body (6) is achieved by radius (R), that along the longer axis are achieved two symmetrical semicircular working protrusions (C) with a radius (r) and a height (v), being indented once per both sides, by a radius (R2) for height (v2), and vertically on the short axis two symmetrical semicircular auxiliary recesses (G) with radius (M) and height (v1) arranged each from other in alteration at the angles of 90 DEG.

19. -Device according to claims 11 and δ, is characterized in, that the circular cross section of the body (6) is achieved with radius (R), that along the long axis are achieved two symmetrical semicircular working protrusions (F) with radius (r), truncated by radius (Rf) at the height (v), and vertically on the short axis two symmetrical semicircular auxiliary recesses (H) with radius (M) and height (v1), truncated with radius (Rh) by the height (v1), arranged each from other in alteration at angles of 90 DEG.

20. -Device according to Claims 9,12,13,14, is characterized in, that the circular cross section of the body (6) is achieved with radius (R), that two symmetrical semicircular working protrusions (A) are achieved with radius (r) arranged each from other at the angles of 1δ0 DEG.

21. -Device according to Claims 9,12,13,14, is characterized in, that the circular cross section of the body (6) is achieved with radius (R), that achieved are two symmetrical semicircular working recesses (G) with radius (r1) arranged each from other in alteration at the angles of 1δO DEG.

22. -Device according to Claim 16, is characterized in, that the circular cross section of the body (6) is achieved with radius (R), that eccentrically achieved is one semicircular working protrusion (A) with radius (r).

23. -Device according to Claims 16, is characterized in, that the circular cross section of the body (6) is achieved with radius (R), that eccentrically achieved is one semicircular auxiliary recess (G) with radius (r1).

24. -Device according to Claims 2 and 3, is characterized in, that the circular cross section of the body (6) is achieved with radius (R), that along the long axis are achieved two symmetrical semicircular working protrusions (E) with radius (r) and height (v), indented, near the tops, four times per side, and vertically on the short axis two symmetrical semicircular auxiliary recesses (G) with radius (r1) and height (v1) arranged each from other in alterations at the angles of 90 DEG.

Zivoslav Milovanovic,

Applicant